Operating System Security Hardening Checker

Validate CIS benchmarks against Linux or Windows hosts to identify OS hardening gaps.

6|Updated Oct 25, 2025
One-click install
npx skills add https://github.com/williamzujkowski/cognitive-toolworks --skill operating-system-security-hardening-checker
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: Operating System Security Hardening Checker
Source: https://github.com/williamzujkowski/cognitive-toolworks/tree/main/skills/security-os-validator
Command: npx skills add https://github.com/williamzujkowski/cognitive-toolworks --skill operating-system-security-hardening-checker

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Verify OS hardening by validating CIS benchmarks against a target Linux or Windows host to identify gaps and improvement opportunities.

Core Features & Use Cases

  • CIS benchmark compliance checks for Linux and Windows Server
  • OS patch currency validation within a 30-day window
  • Kernel hardening verification (SELinux, AppArmor) and host-based firewall assessment
  • File integrity monitoring checks and remediation planning
  • Use Case: Before production deployment, generate a CIS-aligned remediation plan for your fleet

Quick Start

Run the OS hardening checker against the target host to generate a CIS-based hardening report.

Frequently Asked Questions about Operating System Security Hardening Checker

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I verify OS hardening against CIS benchmarks for my Linux or Windows host?

To verify OS hardening against CIS benchmarks, you can run an assessment that inputs your OS platform, distribution, and desired CIS level to output a compliance score, detailed findings, and remediation steps.

What does a CIS compliance check evaluate for kernel hardening and firewall configuration?

A CIS compliance check evaluates kernel hardening mechanisms like SELinux or AppArmor and assesses host-based firewall configurations to identify security gaps across multiple OS versions.

Can I use this CIS benchmark validation for both Linux distributions and Windows Server environments?

Yes, you can tailor CIS benchmark validation for both Linux distributions and Windows Server environments by specifying your os_platform and os_distribution inputs to assess patch status and security configurations.

How do I check OS patch currency and generate a remediation plan before production deployment?

You can check OS patch currency within a 30-day window and generate a CIS-aligned remediation plan for your fleet by running the hardening assessment against your target host before production deployment.

Does the hardening assessment validate SELinux and AppArmor configurations?

Yes, the hardening assessment validates kernel hardening configurations including SELinux and AppArmor enforcement, alongside host-based firewall rules and file integrity monitoring checks.

What inputs are required to tailor a CIS benchmark assessment for my target host?

You need to provide os_platform, os_distribution, and cis_level inputs to tailor the CIS benchmark assessment, which then outputs a compliance score, detailed findings, and remediation steps.